Abstract
Purpose
Optimal treatment for primary central nervous system lymphoma (PCNSL) comprises polychemotherapy induction with high-dose methotrexate followed by consolidation therapy, but there is no standard treatment regimen because of a lack of comparative trials examining efficacy or relative value. We performed a retrospective outcome and relative cost analysis on consolidation regimens to gain perspective on how cost and benefit can be weighed in medical decisions for patients with PCNSL.
Methods
Patients with newly diagnosed PCNSL who completed consolidation at our institution from July 1, 2012, to March 1, 2019, were included. Patients completed etoposide/cytarabine (EA), high-dose cytarabine (HIDAC), or high-dose chemotherapy with autologous stem-cell rescue (HDC-ASCR) as consolidation regimen. Data were collected from the electronic medical record and our institution’s Value Driven Outcomes tool. Survival was analyzed as date of diagnosis to last known date of survival.
Results
Of the 22 patients included in the study, 12 completed the EA regimen, 4 completed HDC-ASCR, and 6 completed HIDAC. Facility and pharmacy costs contributed most to the cost of each treatment. HDC-ASCR treatment was 50× the cost of the cheapest treatment, HIDAC. Outcomes were numerically superior with HDC-ASCR and HIDAC compared with EA (2-year progression-free survival 100% vs. 100% vs. 63.6%, respectively, p = 0.1915).
Conclusion
This small retrospective cost–benefit analysis provides evidence that HDC-ASCR may be a superior treatment for PCNSL but at a higher cost than other consolidation regimens. HIDAC may increase value for patients, including elderly patients, who are not appropriate candidates for HDC-ASCR when compared with EA.
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Data availability
The datasets generated during and or analyzed during the current study are not available.
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Funding
This work was supported by the Huntsman Cancer Institute Neurologic Disease Center, which is partially supported by the Huntsman Cancer Foundation. Use of the Research Informatics Shared Resource was provided by Huntsman Cancer Institute and supported by the Huntsman Cancer Institute’s Cancer Center Support Grant No. P30CA42014 from the National Cancer Institute of the National Institutes of Health. Resources of the Center for Neurologic Cancers were supported by Huntsman Cancer Institute and the Huntsman Cancer Foundation.
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All authors contributed to the study conception and design. Material preparation and data collection were performed by SG and AM. Data analysis and interpretation was completed by SG, AM, JM, and AC. The first draft of the paper was written by SG and JM, and all authors commented on previous versions of the paper. All authors read and approved the final paper.
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This is a retrospective observational study. The University of Utah IRB approved this study with a waiver of informed consent as protocol #66337.
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Gelhard, S., Maxwell, A., Colman, H. et al. Consolidation regimens in primary central nervous system lymphoma: a single-center retrospective cohort evaluating survival outcomes and cost–benefit analysis. J Neurooncol 159, 293–300 (2022). https://doi.org/10.1007/s11060-022-04064-x
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DOI: https://doi.org/10.1007/s11060-022-04064-x